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#671 api in faceset_helper to obtain multiple bounds from single loop in case of intersections

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This commit is contained in:
Thomas Krijnen
2022-10-13 09:22:28 +02:00
parent 0b20d3ae2c
commit 9a4d3e706a
2 changed files with 18 additions and 4 deletions
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src/ifcgeom/IfcGeom.h
+1
View File
@@ -151,6 +151,7 @@ private:
bool edge(int A, int B, TopoDS_Edge& e); bool edge(int A, int B, TopoDS_Edge& e);
bool wire(const LP& loop, TopoDS_Wire& wire); bool wire(const LP& loop, TopoDS_Wire& wire);
bool wires(const LP& loop, TopTools_ListOfShape& wires);
}; };
double deflection_tolerance; double deflection_tolerance;
src/ifcgeom/faceset_helper.cpp
+16 -3
View File
@@ -243,10 +243,21 @@ bool IfcGeom::Kernel::faceset_helper<CP, LP>::edge(int A, int B, TopoDS_Edge& e)
} }
template <typename CP, typename LP> template <typename CP, typename LP>
bool IfcGeom::Kernel::faceset_helper<CP, LP>::wire(const LP& loop, TopoDS_Wire& wire) { bool IfcGeom::Kernel::faceset_helper<CP, LP>::wire(const LP& loop, TopoDS_Wire& w) {
TopTools_ListOfShape ws;
if (!wires(loop, ws)) {
return false;
}
util::select_largest(ws, w);
return true;
}
template <typename CP, typename LP>
bool IfcGeom::Kernel::faceset_helper<CP, LP>::wires(const LP& loop, TopTools_ListOfShape& wires) {
if (duplicates_.find(util::conditional_address_of(loop)) != duplicates_.end()) { if (duplicates_.find(util::conditional_address_of(loop)) != duplicates_.end()) {
return false; return false;
} }
TopoDS_Wire wire;
BRep_Builder builder; BRep_Builder builder;
builder.MakeWire(wire); builder.MakeWire(wire);
int count = 0; int count = 0;
@@ -264,10 +275,12 @@ bool IfcGeom::Kernel::faceset_helper<CP, LP>::wire(const LP& loop, TopoDS_Wire&
wire.Closed(true); wire.Closed(true);
TopTools_ListOfShape results; TopTools_ListOfShape results;
if (kernel_->getValue(GV_NO_WIRE_INTERSECTION_CHECK) == 0. && util::wire_intersections(wire, results, kernel_->get_wire_intersection_tolerance(wire), kernel_->getValue(IfcGeom::Kernel::GV_PRECISION))) { if (kernel_->getValue(GV_NO_WIRE_INTERSECTION_CHECK) < 0. && util::wire_intersections(wire, results, kernel_->get_wire_intersection_tolerance(wire), kernel_->getValue(IfcGeom::Kernel::GV_PRECISION))) {
Logger::Warning("Self-intersections with " + boost::lexical_cast<std::string>(results.Extent()) + " cycles detected"); Logger::Warning("Self-intersections with " + boost::lexical_cast<std::string>(results.Extent()) + " cycles detected");
util::select_largest(results, wire);
non_manifold_ = true; non_manifold_ = true;
wires = results;
} else {
wires.Append(wire);
} }
return true; return true;